Boyal e



no Model) R E. DEANE.

AUTOMATIG STEAM HEATER OE BOILER FOR CULINARY AND OTHER PURPOSES.

Patented June 12, 1888.

Lil

linrrnn STATES ATENT tries..-

ROYAL n. DEANE, OF NEW roan, N. Y.

AUTOMATlC STEAM HEATER 0R BOILER FOR CULlNARY AND OTHER PURPOSES.

SPECIFICATION forming part of Letters Patent No. 384,348, dated June 12,1888.

Serial No. .ZllJBJ. (No model.)

To all whom it army concern:

Be it known that I, ROYAL E. DEANE, of the city, county, and State ofNew York, have invented a certain new and useful Automatic Steam Heateror Boiler i'or Culinary and other Purposes, of which the followingdescription is in such full, clear, and concise terms as to enable anyone skilled in the art to make and use the same, reference being had tothe accompanying drawings, illustrative thereof, wherein like letters ofreference indicate corresponding parts.

My invention contemplates aboiler or heater for culinary and otherpurposes, heated by steam or hot air in a pipe, coil, or annular, solocated and surrounded that constant circulation is straightway startedand continued automatically, whereby the temperature is constantlymaintained practically at the boilingpoint without the necessity ofblowing off excessive steam or requiring any safety-valve.

Figure 1 shows a central vertical section of such a boiler, and Fig. 2shows similarly a modification.

It is obvious that in horizontal section the boiler may be made squareor round or of any other shape desired.

My apparatus consists, essentiallypfa boiler, B, and removable cover A,of ordinary construction, containing a smaller compartment, D, within,which is substantially steam-tight, and into which steam heat isintroduced by an ordinary annular, F F, as shown in Fig. 1, or by asuitable steam-coil, as shown and similarly lettered in Fig. 2, or byany other wellknown means for such purpose. In the sides of this smallercompartment, D, and near the bottom, are a series of orifices, (letteredi,) acting as both inlets and outlets, according to circumstanceshereinafter mentioned. In the top of this compartment D may or may notbe placed an orifice, e, for an air-vent, as such renders the practicaloperation of the apparatus more instantaneous without rendering thecompartment insufficiently steam-tight to accomplish the automaticaction described later. Gages may be added for determining the quantityof water or other liquid drawn 01f or supply remaining in the usual way,and the boiler may be filled from the bottom, sides, or top in any ofthe many well-known ways, and

ated, which by its expansive power forces the water or other liquid inthe compartment D down ward and outward through the orifices i, actingas outlets, until the surface of the water or liquid is forced below theannular or coil,

whereupon condensation occurs and the water or liquid flows back throughthe same orifices, acting as inlets, until it rises around and above theannular or coil, when it is again forced downward and outward,'as beforedescribed, until condensation occurs again, and the same action isrepeated, and the circulation thus becomes constant and automatic.

The apparatus shown in Fig. 2 is a modification somewhat more elaborate,and consists, substantially, of a boiler, B, having two compartments-sinupper, O, and lower, D, thelattcr substantially steamtight-separated bya partition or diaphragm, E, but connected by a pipe, I, entering theupper compartment through its bottom E, as shown, or the outside nearthe bottom, and extending downward nearly to the bottom of thelowercompartment, 1), into which water or other liquid is introduced bythe supply-pipc G, regulated by cool; 5 in the ordinary way. ThecompartmentD is furnished with some heating device, such as hot-air orsteam coil F, as shown, or by an ordinary steam-annular or other meanswell known to the art. The compartment Chas outletpipe H, regulated bycock h, as usual, for drawing cit the water or liquid or supplying aproperlyconnected contiguous vessel. This connection may be made atupper part or elsewhere to suit exigencies. Gages J and K are furnishedto indicate the height of the respective bodies of water or liquid. Acover, A, is also provided, loosely fitted.

The operation is as follows: The water or liquid is supplied to lowercompartment, D, and rises above the heated steam-coil F, and

' stands at an equal height in the pipe I. When heated to theboiling-point, steam is generated between the surface of the liquid andthe diaphragm B. As the steam-pressure increases, the liquid, and onlyboiling liquid, is forced upward through the pipe I into the uppercompartment or reservoir, 0, by the expansive power of the accumulatedsteam. The process continuing, boiling liquid may be forced over intoaconnected contiguous vessel or drawn off in the ordinary way. The gage Jwill indicate the amounts drawn off and remaining. Given a certainquantity of liquid in the lower compartment or boiler, D, and the heatconstant, the boiling liquid will gradually be forced into uppercompartment or reservoir, 0, until the surface of the liquid is forcedbelow the steam coil, when the operation ceases, of itself, because ofthe ensuing condensation, whereupon the liquid falls back and theoperation is repeated, as above described. It is obvious that theconnectingpipe I must extend below the steam-coil, and that there mustbe sufficient space between the latter and the diaphragm above for thepurposes of particular boilers. Instead of a horizontal division, asshown, that division may be perpendicular with merely mechanicalalterations.

The chief practical advantages of an apparatus constructed and operatingsubstantially 2. A heater for culinary or other purposes,

divided by a partition into two compartments communicating with eachother by one or more orifices or openings located near the bottom of thecompartment containing the heating apparatus, in combination with saidheating apparatus situated therein above said orifices or openings, inthe manner and for the purpose substantially as specified.

ROYAL E. DEANE.

\Vitnesses:

GEORGE RAWLINS, EDMUND D. HENNEssY.

